Aeroplane with vertically oscillatable wings



Feb. 23, 1932. H. KERN AEROPLANE W ITH VERTICALLY OSCILLATABLE WINGS Filed June 27. 1931 M 3. m m4 m F My Patented Feb. 23, 1932 UNITED STATES HEINRICH KERN, OF TELLNITZ, OZECEOSLOYAKIA AEROPLANE WITH vmvncanmr OSCILLATABLE WINGS Application filed June 27, 1931, Seriallo. 547,811, and in Czechoslovakia June 5, 1928.

This invention relates to an aeroplane with wings oscillatable up and down, which are hinged to short supporting planes and automatically driven from the propeller shaft .5 by suitable transmissions and driving means, the oscillatable wings themselves having apertures automatically opening and closing like Venetian blinds.

An embodiment of the invention isillusl trated by way of example in the accompanying drawings in which Fig. 1 is a vertical longitudinal section through the supporting planes and the right oscilla'table wing.

Fig. 2 is a top plan view of Fig. T, partly in section.

Fig. 3 is a vertical one of the wings on a slightly larger scale.

In the hull 1 the engine 2 with cooler 3 is I built in the usualmanner. The shaft 5 carrying the propeller 4 is arranged in known manner inclined at an angle to the longitudinal axis of the hull and the rotating movement of the shaft 5 transmitted by a worm 6 and a worm wheel 6a to ashaft 7, which acts on two shafts 9 through the intermediary of clutches and pairs of bevel wheels 8. On the outer ends of the shafts 9 crank discs or crankslO are mounted, the free ends of which engage the axles 13, which are connected by struts 12 and 12a to wings 14 and consequently efiect the raising and lowering of the wings. The bevel wheels 8 and shafts 9 are arranged under the supporting planes 15,

iii

which in the example illustrated are rigidlyconnected to the hull. The supporting planes are preferably hollow and taper towards the end,'to which the wings 14 are movably connected by means of pins 14a.

The upper surface of the oscillatable wings is provided with a staying and in the practical construction the wings are made of r hard wood plates connected like plywood. Apertures 14b in the oscillatable wings are automatically closed by flaps 16 during the downward movement of the wings, and these flaps open during the wings. The

5 movement 'of the flaps is iirt section through the upward movement of limited in the open position by stops 17 The oscillatable wings in their lowest position, as long as the aeroplane runs on the ground,

are situated with their ends slightly above the surface of the ground, as can be seen from the position of the right wing shown in dotdash lines in Fig. 1. The aeroplane rests with its sprung carriage, carrying the hull 1, on runner wheels 18.

The supporting surfaces 15 need not be rigidly connected to the hull as'illustrated o in the above example, but they may be oscil-v latable around the axis of the worm wheel 6.

'An indicator may be fitted on the dash board in front of the pilots seat designed to show the actual position of the slowly as- 05 cending and descending wings, so that the driver is in a position to stop the engine so that the oscillatable win s remain adjusted in a position best suited or gliding.

I claim 7 1. An aeroplane, comprising in combination short supporting planes, oscillatable wings adapted to move up and down on said supportin planes, cranks adapted to effect the up an down movements of said oscillatable win s, crank shafts adapted to actuate .said cran s, connecting rods connecting said shafts to said cranks, an intermediate shaft adapted to drive said crank shafts, bevel Wheels adapted to transmit the movement of go said intermediate shaft to said crank shafts, a propeller wheel, a worm, and a worm wheel adapted to transmt the rotary movement of said propeller shaft to said intermediate shaft. 4 1

2. An aeroplane as specified in claim 1, comprising in combination with the oscillatable wings having apertures, flaps adapted during the upward, and downward movements of said wings to automatically open and close said apertures in the wings like Venetian blinds, and stops adapted to limit the lifting movement of said flaps.

In testunony whereof I afiix my signature.

HEINRICH KERN. 

